A cookie is a small file of letters and numbers that we put on your computer which are essential for the website to function properly and which help to provide you with a better online experience. These cookies cannot be switched off and do not store any of your information. We use “analytical” cookies, which allow us to recognise and count the number of visitors and to see how visitors move around the site when they are using it. This helps us to improve the way our website works, for example by ensuring that users are finding what they are looking for easily.